Can nozzle



` 'feter AVAILABLE Cori lPesa-an Mai. 3e, lezef UNITED sfr-Ares PATENT'- ISAAC E. sExToN, oF wincns'rnn, MASSACHUSETTS.

revest Fries'.

can Nozznn.

Application .inea Jurys, 1.925. serial No. 42,456.'

. To all whom t may concern."

Be it known thatl, ISAAC E. Semois, a

citizen of the United States, Nresiding at therefor adapted to cooperate with a closingv cap to form a liquid-tight closure, the cap including a top portion having a compressible packing layer, on its inner side, and an annular flange embracing the nozzle and provided with lugs constituting an element v of means for pressing the packing layer .I provided with pressing against the nozzle mouth, the nozzleI being means adapted to cooperate with said lugs.

The object of the invention is tov provide a sheet metal nozzle of improved construction including a packing layer seat vwhich is extremely rigid and free :from vliability of deformation by. sealing pressure exerted upon it, and adapted to cooperate with the packing llayer 1n formingk a continuous liquid-tight joint, and means permitting a limited rotation of the cap in one `direct-lon only, and so limiting said rotation as to prevent the possibility of the unintentional release of the cap from the neck.

Of the accompanying drawingsforming a part of this specification,-

Figure 1 is a side View cfa cam nozzle embodying the invention. t

Figure 2 is an end View ofthe same, a portion being shown in section.

Figure 3 is a section on line 3-3 of Figure 2.

Figure 4 is an end view of the partly completed blank from which the nozzle is made.

Figure 5 is a section on line 5``5 of'Figure 4. l

Figure 6 is a side view of the cap?.

o Figure 7 is a section on line 7- l of Fig-y ure 6.

' Figure 8 is a view similar to Figure 3, showing the cap engaged with the nozzle.

Figure 9 is a fragmentary sectional view, showing a portion of the nozzle on luie 9f--19 of Fi re 2, and the portion of the cap which includes one of the lugs.'

yThe drawing shows the nozzle and cap considerably enlarged.

The same reference characters indicate the same parts 1n all of the ligeras.

4The cap which cooperates with my improved nozzle includes a top 12, having on its inner side a cio-mpi'essible pac-king layer 13, and an annular .flange 14, formed to surround the nozzle andvprov'ided with inwardly projecting lugs 15, which, in this instance,

are bosses pressed inward from the llange.

The nozzle comprises a preferably seamless tubular sheet metal body 16, formed at its inner end for attachment to the top l17 (Figure 3) of a sheet metal can, said having an aperture surrounded by the bdy 16. As here shown, the margin of the aprture is ormedby a; narrow upwardly projecting flange 18, entering the' lower end of the body 17 'and soldered to the' latten V The outer end of the body 16 is' rolled or constituting a continuous annularl seat 19, tor thepacking layer 13, said seat being rounded in cross section, and adapted to co-v operate With the packing layer in forming a liquid-tight joint. From the neck or seat 19 depends a continuous flange 20, surrounding the body 16, and spaced by the l seat from the body.

The scat and flange are integral with the body, and the flange reinforces and stiens the seat'and prevents deformation of the latter by pressure exerted on it bythe cap.

Extending across the` ange are transverse 'turned outward, to form an annular neck indentations'constituting guides 21, through j vwhich the cap lugs 15 are movable. e Each guide has a shorter end 22, and a longer end 23 (Figure l1). The indentations serve to stiien the vflange 20, by imparting aparv tially corrugatedform thereto. The lower edge of thetlange 2O is diversified, and includes cam-shaped'edge portions 24, inclined downward from the shorter en ds 22 of the guides, stops 25, projecting downward 'from the lower ends' of the portions 24, and inclined portions 26 (Figure 1) at the lower -cnds of the indentations forming the guides.

The cap lugs15 are arranged to simultaneously enter the guides. When the packing layer comes to a bearing on the seat 19, thev lugs 15 are in the positionshown by dotted lines at the ce'ntral portion of Figure 1. A partial forward rotation of the4 cap in the direction of the arrow w in Figures 1 and 6,

is-now permitted, said rotation causing the lugs to cooperate with the cam-shaped edge portions 24 in pressing the cap downward,-

its packing` and increasing the pressure of layer 011th@ 96M 19,

los

'I The stops25 limit the forward rotationof Vthe cap by arresting the lugs at the lower ends of the cam-shaped edge portions 24, as indicated b' dotted lines at the right hand portion of igure 1. The lugs are therefore prevented from being carried by the forward rotation of the cap beyond theilowe'r ends of the'portions 24, and from entering.

the guides 21, so that provision is made for preventing an unintentional release of vvthe cap by continuingits `forward rotation'too lfar.

The cap may be released by rotating it backward until the lugs encounter the longer ends 23 of the guides. r i

`'l` he nozzle may be formed from a flat dis- "coidal blank-of sheet meta-l, by suitable pressingand cutting'dies, .the blank being in the Jform shown by Figures 4 and'5, at one stage of the formingoperation.l At this stage thebody 16 has. its final form, and is closed at one end by the central portion of the blank, which portion is subsequently cut-out to leave the end open. A flat annular incipientflange 31 now projects outward from the outer end of the body 16, the width of this flange being such that the neck or seat 19 and the flange 2Q inay be-iformed from it, as

.indicated bydotted lines in Figure 5, by a subsequent operation involving the bending of the incipient flange to form the seat and -the flange'20, and the cutting away'otthe` marginal portion to form the edge portions i `closing can having a packing layer on its top and inwardly projecting lugs on its flange, said nozzle comprising .a tubular sheet metal body formed at its inner end for attachment toman apertured can top, and

investe provided at its outer end with an outwardly shorter and a longer side wall, and camshaped lower edge portions inclined downward-from the shorter side walls of the gnides,and adapted to cooperate with the cap lugs in pressing the packing layer against the seat.

2. A can nozzle for use with a flanged closing cap having a packing llayer on its top and inwardly projecting lugs on its flange, said nozzle comprising a tubular sheet metal body formed at its inner end for attachment to an apertured can top, and provided at its outer end withan outwardlyturned neck constituting a continuous annular seat for said packing layer, and with a continuons guides for the cap lugs, each guide having a flange depending from the seat,surrounding the body, and spaced by the seat'from the body, said flange reinforcing and stiflening the seat against deformation by pressure of the ycap against it. and having transverse indentations .extending across and stifl'eni'ng the flange, and constituting guides for the cap lugs, each guide having a shorter and a longer side wall, cam-shaped lower edge portions inclined downward from the shorter side walls of the guides,'and adapted to cooperate with the cap lugs in pressing the .packing layer against the seat, and stops pro]ecting downward from the lower ends'.

of' the cam-shaped portions, said stops permitting a partial forward rotation of the cap, to cause its lugs to cooperate with the cam-shaped edge portions. and limiting-said forward rotation to prevent the lugs from being carried thereby beyond the lower ends of said portions and entering the guides.

In testimony'whereof I have affixed my signature.

ISAAC E. SEXTON. 

